题目内容

严禁将焊接电缆线或是焊割的橡胶管缠绕在身上操作,以防触电或燃爆。()

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By saying "... having subordinated the earth to man" (Para. 2), the author implies that science and technology _____.

A. have enslaved human beings
B. have led to the ruin of civilization
C. have freed human beings from ignorance
D. have helped human beings to conquer the Nature

根据团队成员构成目标定位处理问题方式方法的不同团队可以分为的类型包括()。

We know from Paragraph 4 that lairs are prone to _____.

A. speak in great details
B. blink more rapidly
C. avoid eye contact
D. blink less frequently

钎焊可以一次完成多个零件或多条钎缝。()

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